HACM: High Availability Control Method in Container-Based Microservice Applications Over Multiple Clusters

Emerging cloud-native technologies, such as container runtime and orchestrator, offer unprecedented agility in developing running applications, especially when combined with microservice-style architecture. Several commercial Samsung Network products Element Management System (S-EMS), 5G Radio Access (RAN) & Core network elements are being redesigned to fit the microservice paradigm. The cloud environment allows enterprises scale their applications on-demand minimum cost; however, it is often difficult use containers without sacrificing many benefits offered by technology. S-EMS manages RAN (NEs) deployed nationwide, systematically stores a huge volume of stateful data per second. Containers characterized have an ephemeral state, hence ‘stateful-ness’ aspect makes management more complex. existing system container-based application does not support geo-redundancy where services/data stateful/state dependent. In this paper, different challenges around between independent Kubernetes set up active standby modes sites state-dependent stored each site described. To overcome these challenges, we propose High Availability Control Method (HACM) - which enables cluster be standby, context-based operations intrinsically supported underlying application. Our approach has been designed maintain philosophy associating status using high availability (HA), switching over services based on health deciding state there conflicts option auto fallback user preference transferred intervention optimized storage that ensures consistency, persistence, reliability, availability. Through evaluation, show HACM can facilitate HA, while posing significant burden Cloud.